Island



3 Sheets-Sheet 1.

(No Model.)

J. T. MAOLEOD.

.FLANGING MAGHINE.

Patented June 7, 1887.

N. PETQRS. Phmwl-hhognpvm, Willinginn, D. C.

(No Model.) 3 Sheets-Sheet 2.

. J. T. .MAGLEOD;

FLANGING MACHINE. No. 364,425. Patented June 7, .1887.

n PETERS. Photo-Lillwlnpher. Wznhlngion. 0.0

3 Sheets-Sheet 3.

(No Model.)

J. T. MAGLEOD. PLANGING MACHINE.

No. 364,425. Patented June 7, 1-887,

ixumaw NITED STATES PATENT Orrrcre.

JOHN .T. MAOLEOD, OF PROVIDENCE, RHODE ISLAND.

'FLANGING- MACHINE.

SPECIFICATION forming part of Letters Patent No. 364,425, dated June 7,1887.

Application filed February 15,1887.

T aZZ whom it may concern:

Be it known that I, JOHN T. MAoLEOD,acitizen of theUnited States, residing in the city and county of Providence, in the State of Rhode Island,have invented a new and useful Machine for Turning Flanges uponBoiler-Heads or TubeSheets and Similar Plates of Metal, of which thefollowing is a specification.

The purpose of my invention is to provide means of forming from the bodyof the sheet or plate outside or inside flanges, or both, of uniformthickness without cracking or otherwise weakening the metal. a

It consists, primarily, of the provision of means for holding andturning the sheet while its outer edge is formed into a flange by arollacting in a tangential are at right angles to the plane of the face ofthe sheet, and of means of holding and forcing the sheet downuponaseries of vertical rolls pivoted upon the revolving bed of themachine and acting within a central opening in the sheet against thesurroundingedge to form a flange around said opening.

structurally my machine may, for the purposes of this speeification,bedivided into three principal systems of mechanism, namely: The firstsystenrcomprises the revolving bed and its operating mechanism, thesecond system comprises the sheetholding device and its feeding andgoverning mechanism, and the third system comprises the outside orperipheral flanging-roll with its feed, stop, and operating devices. Ofthese the firstsystem has added toit, when outside flanges are to beturned, a metal former. Vhen inside flanges are to be turned, in placeof the metallic former I use a series of rolls secured upon the bed byvertical pins, about which said rolls revolve independently of themovement of the revolving bed. Ialso provide in the second system, foruse in turning inside flanges, a former against which the vertical rollsturn the edge of the sheet surrounding the central opening as the sheetis forced down.

As assembled in the complete machine, the first and second systems areused in turning inside flanges, and the first, second, and third systemsin turning the outside or peripheral flange. In the first system I mountupon a vertical shaft inthe framing a circular bed having a planehorizontal face, and I revolve Serial No. 227,667. .(No model.)

this bed upon its shaft by power applied, as shown, through a system ofbevel-gears, or in any other suitable manner. In turning the peripheralflange I use a former consisting of a heavy circular body of metal withits upper corner properly beveled or rounded off, and I place thisformer upon the bed and secure it thereon. In turning the inside flange,or the flange formed around a central opening or man-hole in the sheet,I mount upon the re volving bed a circular plate, upon which I place aseries of conical rolls having pins extending through them verticallyand through said plate. The rolls are free to revolve about these pins,the plateturning with the bed, and the rolls revolving in the reversedirection when in contact with the edge of the sheet in the process ofturning the flange.

In the second system I have a spindle swivcled to a foot provided withbranching arms at its lower end adapted to be secured to an annularplate or collar, and provided near its upper end with a rack engaged bya pinion on a cross-shaft j ournaled in the upper part of the framing,the spindle extending up through the top of the frame. The wlloleisraised or lowered in the ordinary way, by means of said rack and pinion,to release the sheet or to clamp it firmly upon the former and revolvingbed. This construction is used in conjunction with the first system toform the outside or peripheral flange on the sheet. When the insideflange is to be turned, it is necessary to hold the sheet stationarywhile the bed and vertical rolls revolve. I then attach to the annularformer, which is secured to the arms of the spindle-foot,stop-dogs,whichextend upward into the framing and prevent the second system fromrevolving with the first system. The sheet is forced downward upon theseries of rolls by means of the rack and pinion already mentioned. Forthe purpose of steadying the sheet and preventing it from chattering, Ihave finger-bars secured to the under side of the supporting-plate andextend in g upward through the framing connected by chains passing overpulleys to weights sufflciently heavy to afford a proper degree ofresistance to the downward movement of the plate. V

In the third. system a sliding carriage is gibbed upon-a bed,whieh formsa part of the frame of the machine, and is moved thereon by a feed-screwoperated in the well-known manner. A cheek-nut on a threaded shaftregulates the traverse of the carriage. Upon this carriage I hinge abracket upon pins passing through each side of the carriage, near itstop,and through the arms ofthe bracket. From this bracket I suspend aroll by means of a spindle through the latter axially andjournaled inthe bracket, thereby permitting the roll to rotate independently in anyposition of the bracket. The bracket is rotated on its pin-joints bymeans of a wrench, and carries the roll with it in an arc of ninetydegrees perpendicular to the plane of the bed. As an auxiliary to thissystem, for the purpose of smoothingthesheetwhile turningupthe flange,

I attach or pivot upon the frame opposite the carriage a shaft whichcarries a smoothing-roll. This roll may be raised to free the sheet. Ialso attach to the front of the carriage one or more ro1ls,which serveto hold up and steady the edge of the former-plate.

In the drawings, Figure 1 is an elevation of my flanging-machineadjusted to turn the outside flange on a tube=sheet. Fi 2 is a top planof the same. Fig. 3 is an elevation of my flanging-machine adjusted toturn the inside flange on a tubesheet, and Fig. 4. is a top plan of thesame. The remaining figures show details on a larger scale. Fig. 5 is avertical section, partly in elevation. Fig. 6 is a plan view, partly insection; and Fig. 7 is a corresponding vertical section, partly inelevation.

Similar letters of reference indicate corresponding parts in all thefigures where they occur.

I designate the frame of the machine by the letters A A, and thatportion forming the bed for the roll-carriage by A. The revolving bedBis mounted upon a vertical shaft, 1), journaled in the lower part ofthe frame, and connected at its lower end by bevel-gears and a shaftwith a driving-pulley, P. B represents the former on which the outsideflange is turned. It is secured upon the bed B and re volves with it.

The roll Q rotates upon its shaft 70, hinged upon the frame at g, topermit the roll to be raised to free the tube-sheet.-

E represents the shaft vertically placed in the upper part of the frameand a swiveling foot which is provided with two or more branching arms,E E E, bolted or otherwise rigidly attached to an annular plate oreollar,F. Said shaft E and its connected parts areraised and lowered bya rack and pinion operated by a hand-wheel, H, as illustrated in thedraw ings. The parts of the machine described in the two precedingsentences constitute that portion of the second system used in turningthe outside flange.

13 is a second circular plate, upon which I mount a series of conicalrolls, D D D, arranged in a circle and loosely pivoted on vertical axialpins (2 d d, as shown in Fig. '3. This construction permits the rolls DD D to rotate in either direction independently of the movement of thebed B and plate B When the inside flange is to be turned, ad ditionalparts are made available. There are two or more finger-bars, ff, boltedto the under side of the plate G, and extended upward through theadjacent part of the frame A, and connected by chains 0 c, passing overpulleys s s, with weights W W. The former-plate F, bolted or otherwiserigidly secured to the arms E E E, must for this part of the work beannular. Stop-dogs e e are bolted to the former F, and extend upwardinto the frame A, and serve to prevent the plate F and its connectedparts from turning with the rolls D D D.

Upon the bed Ais gibbed a carriage, M,

which is moved along the bed in the ordinary way by the feed-screw m,operated by the wheel 12. The traverse of the carriage is regulated by acheek-nut on the threaded shaft n, also connected with the carriage M. Abracket or bar, J, having rigid arms a a, is mounted upon the carriageM, and is rotated on pins 00 :0, pass ing through said arms and theupper part of each side of the carriage. A wrench-lever, L, is adaptedto engage the bar J, to rotate it in a quadrant of a circle, of whichthe arms a a are the radii and the pins an ac the centers of rotation.Upon the bar J, I hang a roll, R, which revolves freely on its axial pin2.

In the practical operation of my invention, the several systems beingarranged as shown in' Fig. 1, to turn the outside or peripheral flange,the tube-sheet X, having been properly heated, is placed upon the formerB, and clamped thereon by the plate F and its con nected mechanism, andthe bar J and roll It are nowbrought by means of the lever Linto theposition shown instrong lines in Fig. 1. Power is then applied to rotatethe bed B,the sheet X, clamping-plate F, and its connected parts in thedirection indicated by the arrows, and the lever L being graduallydepressed by the attendant, the roll R, impinging on the sheet X,rotates, as indicated by its arrow, and is also rotated on the pinszvzr,as axes in a quarter-circle from the full-line position to thedotted-line position shown in Fig. Land by this movement will bend thesheet about the former B to form a flange, as shown by the dotted linesin Fig. 1.

A roll, Q, serves to remove any unevenness in the sheet and to preventcrimping. The rolls V V, mounted upon shafts bolted to the carriage M,Figs. 1 and 2, assist in steadying and holding the former B.

In turning the inside flange, the tubesheet X is clamped between theplates F and G, which are respectively held stationary by the fingerbars f f and the stopdogs e a. The plate B, mounted on hollow studs, hasthe rolls D 'D D secured upon it loosely by the vertical pins (2 d ofextending downward through all into the wheel B. The parts beingarranged as shown in Fig. 8, power is applied to revolve the opening inthe sheet.

wheel B, which carries with it the plate l3 and the conical rolls D D Din the direction indicated by the arrows. The sheet is fed down againstthe rolls by the rack and pinion, and impinging against the rolls thefriction causes them to revolve in the reverse direction, and to bendthat part of the sheet about the central opening up against the formerF, thereby forming the flange around the central The extreme positionsof the sheet and clamping means are indicated by the full and dottedlines in Fig. 3.

In turning the inside flange, the carriage -M is withdrawn, by means ofits feed-screw m, from contact with the plate or wheel,the roll R ofcourse moving with the carriage.

I claim as my invention and desire to secure by Letters Patent I. In aHanging machine, the revolving wheel 13 and its operating means, theplate B,

and a series of conical rolls, D D D, in combi-,

nation with each other and with a clamping device consisting of theplates F G and spindle E, provided with arms E E and a rack and pinion,as shown, the whole arranged for joint operation and adapted to serve,as specithe plate B, and a series of two or more conical rolls, DD,andvertical pins (Z (l, in combination with each other and with a verticalshaft I),

the series has an independent reverse rotary 5 movement upon its axis(1, resultant upon contact with the edge of a sheet of metal, as shownand described.

4. The carriage M, bar J, pivoted thereon, as shown, and roll It,suspended axially from 50 the bar J, as shown, in combination with eachother and with the bed A, feed-screw m, and threaded shaft 02, allarranged as shown, to allow both the changing of the radial position ofthe carriage M and the limiting its inward 5 5 movement by a suitablecheck-nut on shaft n, as herein specified.

5. The plate F and its supports, in combination with the stop-dogs e 6,plate G, and frame A A, as shown, and adapted to serve 60 as specified.

In testimony whereof I have hereunto set my hand, at Providence, RhodeIsland, this 27th day of January, 1887, in the presence of twosubscribing witnesses.

JOHN T. MAGLEOD.

\Vi tn esses HENRY MARSH, Jr., J AMES TRIBE.

